
Z
Z
˜p
∈ R
φ(x) = x
2
Z =
x
2
dx.
φ(x) φ
φ(x; β) = exp
−βx
2
β Z
β β φ
φ
φ
n
x
b x φ
i
(
i
) = exp(b
i i
)
x
x ∈ R
n
Z
x ∈ {0, 1}
n
p(x) n
p(
i
= 1) = (b
i
) x
{[1, 0, . . . , 0], [0, 1, . . . , 0], . . . , [0, 0, . . . , 1]} p(x) = (b)
b
i
p(
j
= 1) j = i
φ
∀x, ˜p(x) > 0